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//  Copyright Microsoft Corporation
//  Licensed under the Apache License, Version 2.0 (the "License");
//  you may not use this file except in compliance with the License.
//  You may obtain a copy of the License at
//  http://www.apache.org/licenses/LICENSE-2.0
//  Unless required by applicable law or agreed to in writing, software
//  distributed under the License is distributed on an "AS IS" BASIS,
//  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
//  See the License for the specific language governing permissions and
//  limitations under the License.
//  ----------------------------------------------------------------------------------

using System;
using System.Diagnostics;
using System.Threading;
using Newtonsoft.Json;

namespace DurableTask.Core.Tracing
{
    /// <summary>
    /// Manage Activity for orchestration execution.
    /// </summary>
    internal class DistributedTraceActivity
    {
        private static readonly AsyncLocal<Activity> CurrentActivity = new AsyncLocal<Activity>();

        /// <summary>
        /// Share the Activity across an orchestration execution.
        /// </summary>
        internal static Activity Current
        {
            get { return CurrentActivity.Value; }
            set { CurrentActivity.Value = value; }
        }
    }
}
